[jboss-jira] [JBoss JIRA] (AS7-5496) Hibernate proxy class not found in remote EJB call

Scott Marlow (JIRA) jira-events at lists.jboss.org
Wed Sep 26 10:53:03 EDT 2012 

    [ https://issues.jboss.org/browse/AS7-5496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721993#comment-12721993 ] 

Scott Marlow edited comment on AS7-5496 at 9/26/12 10:52 AM:
-------------------------------------------------------------

Trying to unravel if this is a packaging issue or a bug.  It looks like a bug but not 100% sure.

As mentioned above the, readResolve() PersistenceClass=de.seimet.photo.entity.Location and the PersistenceClass.getClassLoader() = ModuleClassLoader for Module "deployment.photo_web.war:main" from Service Module Loader

The class nfe for: classname= de.seimet.photo.entity.Location_$$_javassist_2
ModuleClassLoader for Module "deployment.photo_ear.ear.photo_ejb.jar:main" from Service Module Loader
Module "deployment.photo_ear.ear.photo_ejb.jar:main" from Service Module Loader

callstack for cnfe=
{quote}
http-/127.0.0.1:8080-1 at 11944 daemon, prio=5, in group 'main', status: 'RUNNING'
	  at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
	  at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)
	  at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)
	  at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
	  at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)
	  at java.lang.Class.forName0(Class.java:-1)
	  at java.lang.Class.forName(Class.java:264)
	  at org.jboss.marshalling.cloner.ClassLoaderClassCloner.clone(ClassLoaderClassCloner.java:49)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:157)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:134)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:186)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:134)
	  at org.jboss.marshalling.cloner.SerializingCloner.cloneFields(SerializingCloner.java:348)
	  at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:309)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:253)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:134)
	  at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:267)
	  at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:258)
	  at org.jboss.as.ejb3.remote.LocalEjbReceiver.processInvocation(LocalEjbReceiver.java:169)
	  at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:181)
	  at org.jboss.ejb.client.TransactionInterceptor.handleInvocation(TransactionInterceptor.java:42)
	  at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:183)
	  at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:125)
	  at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:183)
	  at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:136)
	  at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:121)
	  at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104)
	  at $Proxy46.test2(Unknown Source:-1)
	  at de.seimet.photo.backing.ThumbnailBean.action(ThumbnailBean.java:29)
	  at de.seimet.photo.backing.ThumbnailBean$Proxy$_$$_WeldClientProxy.action(ThumbnailBean$Proxy$_$$_WeldClientProxy.java:-1)
	  at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1)
	  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	  at java.lang.reflect.Method.invoke(Method.java:601)
	  at org.apache.el.parser.AstValue.invoke(AstValue.java:264)
	  at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
	  at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:39)
	  at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
	  at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	  at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
	  at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
	  at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	  at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
	  at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
	  at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	  at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	  at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	  at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
	  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	  at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62)
	  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
	  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
	  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	  at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:165)
	  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
	  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:372)
	  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
	  at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679)
	  at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931)
	  at java.lang.Thread.run(Thread.java:722)
{quote}
                
      was (Author: smarlow):
    Trying to unravel if this is a packaging issue or a bug.  It looks like a bug but not 100% sure.

As mentioned above the, readResolve() PersistenceClass=de.seimet.photo.entity.Location and the PersistenceClass.getClassLoader() = ModuleClassLoader for Module "deployment.photo_web.war:main" from Service Module Loader

The class nfe for: classname= de.seimet.photo.entity.Location_$$_javassist_2
ModuleClassLoader for Module "deployment.photo_ear.ear.photo_ejb.jar:main" from Service Module Loader
Module "deployment.photo_ear.ear.photo_ejb.jar:main" from Service Module Loader

callstack=
{quote}
http-/127.0.0.1:8080-1 at 11944 daemon, prio=5, in group 'main', status: 'RUNNING'
	  at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
	  at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)
	  at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)
	  at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
	  at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)
	  at java.lang.Class.forName0(Class.java:-1)
	  at java.lang.Class.forName(Class.java:264)
	  at org.jboss.marshalling.cloner.ClassLoaderClassCloner.clone(ClassLoaderClassCloner.java:49)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:157)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:134)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:186)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:134)
	  at org.jboss.marshalling.cloner.SerializingCloner.cloneFields(SerializingCloner.java:348)
	  at org.jboss.marshalling.cloner.SerializingCloner.initSerializableClone(SerializingCloner.java:309)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:253)
	  at org.jboss.marshalling.cloner.SerializingCloner.clone(SerializingCloner.java:134)
	  at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:267)
	  at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:258)
	  at org.jboss.as.ejb3.remote.LocalEjbReceiver.processInvocation(LocalEjbReceiver.java:169)
	  at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:181)
	  at org.jboss.ejb.client.TransactionInterceptor.handleInvocation(TransactionInterceptor.java:42)
	  at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:183)
	  at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:125)
	  at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:183)
	  at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:136)
	  at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:121)
	  at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104)
	  at $Proxy46.test2(Unknown Source:-1)
	  at de.seimet.photo.backing.ThumbnailBean.action(ThumbnailBean.java:29)
	  at de.seimet.photo.backing.ThumbnailBean$Proxy$_$$_WeldClientProxy.action(ThumbnailBean$Proxy$_$$_WeldClientProxy.java:-1)
	  at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1)
	  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	  at java.lang.reflect.Method.invoke(Method.java:601)
	  at org.apache.el.parser.AstValue.invoke(AstValue.java:264)
	  at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
	  at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:39)
	  at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
	  at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	  at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
	  at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
	  at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	  at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
	  at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
	  at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	  at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	  at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	  at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
	  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	  at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62)
	  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
	  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
	  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	  at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:165)
	  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
	  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:372)
	  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
	  at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679)
	  at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931)
	  at java.lang.Thread.run(Thread.java:722)
{quote}
                  
> Hibernate proxy class not found in remote EJB call
> --------------------------------------------------
>
>                 Key: AS7-5496
>                 URL: https://issues.jboss.org/browse/AS7-5496
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: JPA / Hibernate
>    Affects Versions: 7.1.1.Final
>         Environment: Java 1.6.0_35 and Java 1.7.0_07
> Mac OS X 10.8.1, Windows XP and Gentoo Linux with Kernel 3.5.3
>            Reporter: Uwe Seimet
>            Assignee: Scott Marlow
>         Attachments: deployments.tar.gz, server.log, sources.tar.gz, sources2.tar.gz, test.sql
>
>
> Prerequisites:
> 1. A JPA entity A with a reference to a different JPA entity B. FetchType is FetchType.LAZY, e.g.
> @Entity
> public class A {
>   @ManyToOne(fetch = FetchType.LAZY)
>   private B refToB;
> }
> @Entity
> public class B {
> }
> 2. A remote interface with methods passing an instance of A, .e.g.
> @Remote
> public interface ITest {
>     A test1();
>     void test2(A a);
> }
> 3. A process calling test1() and then test2() on the remote interface like this:
>   @EJB(lookup = "...")
>   private ITest iTest;
>   public void ITest() {
>         final A a = iTest.test1();
>         iTest.test2(a);  }
>   }
> Error description: When calling test1() an instance of A is returned. This instance is valid and works as expected. The reference to B is a proxy (something like B_$$_javassist_2), which was expected because B was loaded lazily and was never accessed in the remote process before. When passing the instance of A back by calling test2(a) an exception of this type is raised:
> java.lang.ClassNotFoundException: B_$$_javassist_2 from [Module "deployment.x.ear.y_ejb.jar:main" from Service Module Loader]
> 	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
> 	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(Concurrent
> ClassLoader.java:468)
> It looks as if the proxy cannot be serialized or deserialized. The behavior is reproducible with different applications on different platforms. As soon as a Hibernate javassist proxy, which was received via a remote call, is passed back as an argument in another remote call (the remote process is the same in all calls) the exception is raised.
> The classloader settings are the standard JBoss settings.

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